With New Jersey now declared a hurricane warning area, a new storm warning has been issued for parts of New York and New Jersey.
The warning area covers the entire Hudson River valley and parts of Nassau County.
The storm could hit New York in as little as an hour and a half.
The National Weather Service says the storm could also be a direct threat to Long Island.
Weather models are saying the storm will bring winds of up to 80 mph.
Weather.com meteorologist Paul Bower says it’s unclear when the storm may hit New Jersey, but if it does, it could be devastating for people who live in the state’s densely populated cities.
“We’re looking at some very heavy rains,” he said.
“The city of Newark could see a lot of flooding.”
Bower says New Jersey Gov.
Chris Christie’s office has issued a request for help to the federal government.
If you’re in New Jersey you’re asked to shelter in place until the storm has passed.
The National Weather System Center in New Orleans says the area has been designated a hurricane watch for the New York City metropolitan area, but officials there are encouraging residents to stay away.
“Stay away from the area,” said a news release from the National Weather Center.
“It may bring down power lines, power outages and flooding.”
It’s unclear whether New York residents will be able to get out of the state.
But residents who live close to the state are being urged to stay in place and stay safe.ABC News’ Chris Newman contributed to this report.